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cifs: clean up arguments to cifs_open_inode_helper 

...which takes a ton of unneeded arguments and does a lot more pointer
dereferencing than is really needed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
This commit is contained in:
Jeff Layton 2010-06-16 13:40:17 -04:00
parent 6ca9f3bae8
commit db460242bf
1 changed files with 14 additions and 16 deletions
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30
fs/cifs/file.c
View File

@ -163,11 +163,11 @@ psx_client_can_cache:
}
/* all arguments to this function must be checked for validity in caller */
static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
struct cifsInodeInfo *pCifsInode, struct cifsFileInfo *pCifsFile,
static inline int cifs_open_inode_helper(struct inode *inode,
struct cifsTconInfo *pTcon, int *oplock, FILE_ALL_INFO *buf,
char *full_path, int xid)
{
struct cifsInodeInfo *pCifsInode = CIFS_I(inode);
struct timespec temp;
int rc;
@ -181,36 +181,35 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
/* if not oplocked, invalidate inode pages if mtime or file
size changed */
temp = cifs_NTtimeToUnix(buf->LastWriteTime);
if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
(file->f_path.dentry->d_inode->i_size ==
if (timespec_equal(&inode->i_mtime, &temp) &&
(inode->i_size ==
(loff_t)le64_to_cpu(buf->EndOfFile))) {
cFYI(1, "inode unchanged on server");
} else {
if (file->f_path.dentry->d_inode->i_mapping) {
if (inode->i_mapping) {
/* BB no need to lock inode until after invalidate
since namei code should already have it locked? */
rc = filemap_write_and_wait(file->f_path.dentry->d_inode->i_mapping);
rc = filemap_write_and_wait(inode->i_mapping);
if (rc != 0)
CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
pCifsInode->write_behind_rc = rc;
}
cFYI(1, "invalidating remote inode since open detected it "
"changed");
invalidate_remote_inode(file->f_path.dentry->d_inode);
invalidate_remote_inode(inode);
}
client_can_cache:
if (pTcon->unix_ext)
rc = cifs_get_inode_info_unix(&file->f_path.dentry->d_inode,
full_path, inode->i_sb, xid);
rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb,
xid);
else
rc = cifs_get_inode_info(&file->f_path.dentry->d_inode,
full_path, buf, inode->i_sb, xid, NULL);
rc = cifs_get_inode_info(&inode, full_path, buf, inode->i_sb,
xid, NULL);
if ((*oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
cFYI(1, "Exclusive Oplock granted on inode %p",
file->f_path.dentry->d_inode);
cFYI(1, "Exclusive Oplock granted on inode %p", inode);
} else if ((*oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
@ -367,8 +366,7 @@ int cifs_open(struct inode *inode, struct file *file)
goto out;
}
rc = cifs_open_inode_helper(inode, file, pCifsInode, pCifsFile, tcon,
&oplock, buf, full_path, xid);
rc = cifs_open_inode_helper(inode, tcon, &oplock, buf, full_path, xid);
if (oplock & CIFS_CREATE_ACTION) {
/* time to set mode which we can not set earlier due to